# CVE-2026-40346: NocoBase SSRF in Workflow and Custom Request plugins

Source: https://junglewise.ai/threats/cve-2026-40346-nocobase-has-ssrf-in-workflow-http-request-and-custom-request  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-18. Updated: 2026-05-14  
License: CC BY 4.0 with a link back

CVE-2026-40346 · Severity: medium · CVSS 6.5 · Published 2026-04-18

NocoBase, a platform for building business applications, contains a vulnerability in its workflow and custom request plugins. These plugins allow the server to make web requests to user-provided addresses without proper safety checks. An authorized user could exploit this to access sensitive internal network services, local databases, or cloud provider credentials that should not be publicly accessible.

Technologies: [Nocobase](https://junglewise.ai/threats/technologies/nocobase). Vendors: [NocoBase](https://junglewise.ai/threats/vendors/nocobase), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-40346 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40346 being exploited in the wild.

**How severe is CVE-2026-40346?** Medium severity, with a CVSS score of 6.5, published 18 April 2026.

**Which products and versions are affected?** NocoBase Custom Request Action Plugin < 2.0.37; Nocobase < 2.0.37; NocoBase Workflow Request Plugin < 2.0.37; @nocobase/plugin-workflow-request (npm) < 2.0.37, SEMVER:introduced=0,fixed=2.0.37.

**Is there a fix for CVE-2026-40346?** Yes. @nocobase/plugin-workflow-request (npm): upgrade to 2.0.37 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-40346 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-40346?** Check whether you run NocoBase Custom Request Action Plugin, Nocobase, NocoBase Workflow Request Plugin or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- @nocobase/plugin-workflow-request (npm): upgrade to 2.0.37 or later

  ```sh
  npm install @nocobase/plugin-workflow-request@2.0.37
  ```


## Technical details

A Server-Side Request Forgery (SSRF) vulnerability exists in NocoBase's Workflow HTTP Request and Custom Request Action plugins. The application uses the axios library to perform server-side requests based on user-provided URLs without implementing IP range filtering, cloud metadata endpoint blocking, or DNS rebinding protection. An authenticated attacker with permissions to create workflows or custom actions can force the server to make requests to internal network resources (e.g., 127.0.0.1 or 169.254.169.254). This can lead to the theft of cloud IAM credentials or unauthorized interaction with internal services. The issue is addressed in version 2.0.37 by migrating to a guarded 'serverRequest' utility that supports IP/domain whitelisting.

## Affected products

- NocoBase @nocobase/plugin-workflow-request < 2.0.37
- NocoBase @nocobase/plugin-action-custom-request < 2.0.37

## Identifiers

- CVE-2026-40346
- GHSA-mvvv-v22x-xqwp

## Timeline

- 2026-04-11: patched: Fix merged into main branch
- 2026-04-14: disclosed
- 2026-04-15: advisory

## References

- [https://github.com/nocobase/nocobase/security/advisories/GHSA-mvvv-v22x-xqwp](https://github.com/nocobase/nocobase/security/advisories/GHSA-mvvv-v22x-xqwp)
- [https://github.com/nocobase/nocobase/pull/9079](https://github.com/nocobase/nocobase/pull/9079)
- [https://github.com/nocobase/nocobase/commit/2853368243ed07339c62c548b7d475f4eeaada59](https://github.com/nocobase/nocobase/commit/2853368243ed07339c62c548b7d475f4eeaada59)
- [https://github.com/nocobase/nocobase/releases/tag/v2.0.37](https://github.com/nocobase/nocobase/releases/tag/v2.0.37)
- [https://api.github.com/repos/nocobase/nocobase/security-advisories/GHSA-mvvv-v22x-xqwp](https://api.github.com/repos/nocobase/nocobase/security-advisories/GHSA-mvvv-v22x-xqwp)

## Related threats

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- [NocoBase SQL injection in checkSQL function](https://junglewise.ai/threats/cve-2026-88402-a-sql-injection-vulnerability-in-the-checksql-function-of)
- [NocoBase cross-site scripting in rich text field renderer](https://junglewise.ai/threats/cve-2026-84701-nocobase-cross-site-scripting-in-rich-text-field-renderer)
- [NocoBase arbitrary file write and local file inclusion leading to remote code execution](https://junglewise.ai/threats/nocobase-arbitrary-file-write-and-local-file-inclusion-leading-to-b8ec6b22)
- [NocoBase sensitive data exposure via SQL blacklist bypass in SQL Collection](https://junglewise.ai/threats/cve-2026-52888-nocobase-sensitive-data-exposure-via-sql-blacklist-bypass-in-sql)